Many smart phone apps, which implement a modern looking user interface, are actually powered by a normal web application behind the scenes that is simply hidden from the user. This doesn’t apply solely to web sites, either. Oftentimes, if you’re trying to diagnose an issue within your own application, you can immediately ignore most client-side code and components, such as HTML, cascading style sheets (CSS), client-side JavaScript, and so forth. That said, the appearance of a 4xx error doesn’t necessarily mean the issue is on the client side, where the “client” is the web browser or device being used to access the application. This category contrasts with 5xx classification errors, such as the 503 Service Unavailable Error we explored a few months ago, which are considered server error responses. Let’s dive in! Server- or Client-Side?Īll HTTP response status codes that are in the 4xx category are considered client error responses.
We’ll even examine a number of the most popular content management systems ( CMSs) for potential problem areas that could cause your own website to be generating a 405 Method Not Allowed unexpectedly. In this article we’ll examine the 405 Method Not Allowed in more detail by looking at what might cause a message, along with a handful of tips for diagnosing and debugging the appearance of this error within your own application. With a potential pool of over 50 status codes that represent the complex relationship between the client, a web application, a web server, and often multiple third-party web services, determining the cause of a particular status code can be a challenge under the best of circumstances. Like most HTTP response codes - especially for those that indicate an error - the cause of a 405 Method Not Allowed reponse can be difficult to track down and fix.
Conversely, a 405 code response confirms that the requested resource is valid and exists, but the client has used an unacceptable HTTP method during the request.
A 404 Not Found error indicates that the requested resource could not be found, and is often the result of an incorrect URL, or trying to access a resource for which the client has inadequate permissions.
This message is distinctly different from the 404 Not Found code that we looked at a while back. The 405 Method Not Allowed is an HTTP response status code indicating that the specified request HTTP method was received and recognized by the server, but the server has rejected that particular method for the requested resource.
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